11144240657 has 4 divisors (see below), whose sum is σ = 12157353456. Its totient is φ = 10131127860.

The previous prime is 11144240629. The next prime is 11144240659. The reversal of 11144240657 is 75604244111.

11144240657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11144240657 - 2⁶ = 11144240593 is a prime.

It is a super-2 number, since 2×11144240657² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11144240659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506556383 + ... + 506556404.

It is an arithmetic number, because the mean of its divisors is an integer number (3039338364).

Almost surely, 2^11144240657 is an apocalyptic number.

It is an amenable number.

11144240657 is a deficient number, since it is larger than the sum of its proper divisors (1013112799).

11144240657 is a wasteful number, since it uses less digits than its factorization.

11144240657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013112798.

The product of its (nonzero) digits is 26880, while the sum is 35.

Adding to 11144240657 its reverse (75604244111), we get a palindrome (86748484768).

The spelling of 11144240657 in words is "eleven billion, one hundred forty-four million, two hundred forty thousand, six hundred fifty-seven".